For supports, high-temperature pipe systems which are expected to experience significant movement of the pipe will frequently use _____.

a. roller hangers
b. bolted clamps
c. welded anchors
d. flexible fasteners


a. roller hangers

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Inverter welding machines are adjusted by turning a hand wheel that moves the internal parts closer together or farther apart.

Answer the following statement true (T) or false (F)

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If a plane cuts through (intersects) a sphere and does not go through the center, the section is called a __________________circle.

Fill in the blank(s) with the appropriate word(s).

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? Identify and state the historical significance of James J. Hill.

What will be an ideal response?

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When an oil furnace is equipped with a draft regulator, the draft regulator closes when the draft in the flue pipe increases.

Answer the following statement true (T) or false (F)

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